Add onResume to FingerprintEnrollEnrolling

Fixes: 62233947

Test: revoke usb permissions, start enrolling, attach usb,
	press ok, continue enroll. enroll should be able to continue
	and complete

onPause was added in b/38102355, but onResume was not added. We should
set the listener in onResume()

Change-Id: I59e617b4789f028d01b86d38049671888c07a5ec
(cherry picked from commit bb846a66)